From the previous step you added a deploy option and indicated a app.yaml file which is used by the cloud platform for deployment options. Create a new file with the same name in the root folder of your newly create project with the following contents.

Now to begin with the actual coding. To make life easy you should grab the client.js from the examples. This example has that in a sub folder called lib and also in that file is a config.json file which contains the server connection information.

From this point you will need to create a new file called app.js which will contain the main coding. For the purposes of this example the code will grab the version of the SAP HANA database from the system and output it to the console. A more complex example would also have a web server listening port and output the value to a webpage loaded via the browser.